GrowIN Portugal exists to give everyone — whatever language they read in — access to accurate, current information about moving to, living in and doing business in Portugal. This page explains how we keep that promise, the source of truth behind everything we publish, and how to reach us if we get something wrong.
The Data Ledger: Our Single Source of Truth
Every figure, threshold, fee, deadline and legal reference we use — across our guides, tools, calculators and services — resolves to a dated, sourced entry in the Data Ledger. The Ledger is the spine of the operation: rather than hard-coding numbers into individual articles, we record each value once, with its source and the date it was verified, and everything else reads from it. When you see a number on GrowIN Portugal, it comes from the Ledger, and you can trace it back to where it came from.
How the Ledger Is Maintained
The Data Ledger is maintained daily. Figures are checked and re-verified against primary official sources, and content is updated when the law changes rather than on a fixed schedule.
- Primary official sources. Entries are verified against the authorities that set them — AIMA, the Autoridade Tributária (Portal das Finanças), IRN, IMT, IAPMEI and the Diário da República.
- A "last verified" date on every entry. Each Ledger entry carries the date it was last checked and a link to its official source, so nothing rests on memory or assumption.
- Updated when the law changes. When a threshold, fee or rule changes at source, we update the entry — and because everything reads from the Ledger, the change propagates wherever that value appears.
Verified Means Verified
We do not ask you to take our accuracy on trust. For each value we show the figure itself, the date it was verified, the legal basis, and a link to the official source — not slogans. Where the position is genuinely uncertain or a change is pending, we flag that rather than guess. Verified means verified.
How the Ledger Powers the Site
Our guides, tools and calculators read from the Data Ledger rather than repeating figures in prose. This has two consequences for you. First, when the law changes in one place, the update propagates everywhere that value is used, so pages do not silently fall out of date against one another. Second, any number you encounter can be traced back to its dated, sourced entry, so you can check the record yourself before you act on it.
Who Publishes This
Content is published under the byline GrowIN Portugal Editorial — our editorial team, not a single named author. GrowIN Portugal is operated by GROWIN PORTUGAL, UNIPESSOAL LDA, based in Faro, Portugal. Tax, accounting and company matters draw on our in-house, OCC-certified professionals, and legal questions draw, where relevant, on partner lawyers.
Our Standards
- Original synthesis, never copying. We read primary and reputable secondary sources, then explain developments in our own words with a foreigner-focused angle. We do not reproduce source text. Any direct quotation is short and attributed.
- Sourced to the Ledger. Figures, dates, thresholds and legal changes trace to a dated, sourced entry in the Data Ledger, so readers can check the record themselves.
- Information, not advice. Our content is general information. Immigration, tax and legal outcomes rest with the relevant authorities and depend on your circumstances. We never guarantee visa or tax outcomes, and we recommend professional advice for decisions that matter.
- Independence and clarity. Our editorial judgement is our own; we flag where something is uncertain rather than presenting a guess as fact, and we update our work when the law or the facts change.
How Our Content Is Produced
Our content is produced with the assistance of AI tools and reviewed under human editorial oversight against the standards above before publication, with every figure resolving to the Data Ledger. We use these tools to research and draft efficiently; editorial responsibility for what we publish rests with GrowIN Portugal.
Corrections Policy
We correct errors promptly and openly. If a published fact is wrong, we fix it at source in the Data Ledger so the correction reaches every page that uses it, and — where the change is material — note that the content has been updated, with the revised date shown. Rules in Portugal change often; if you spot something that no longer looks right, please tell us.
To request a correction, email hi@growinportugal.com with the page or article title and the specific point at issue, ideally with a source. We review correction requests quickly.
Contact
Editorial questions, corrections and feedback: hi@growinportugal.com, or via our contact page. Postal and company details are on our about page.
This page describes our editorial practices for transparency. Our content is general information and not legal, tax or immigration advice.